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Finding the Fourth Proportional to 561,922.76, 774,822.80 and 357,650.12

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Solution

The fourth proportional to 561,922.76, 774,822.80 and 357,650.12 is: 493,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,922.76 : 774,822.80 = 357,650.12 : x
  2. Step 2: Convert to fraction form
    561,922.76/774,822.80 = 357,650.12/x
  3. Step 3: Cross multiply
    561,922.76x = 774,822.80 × 357,650.12
  4. Step 4: Simplify right side
    561,922.76x = 277,115,467,398.74
  5. Step 5: Solve for x
    x = 277,115,467,398.74/561,922.76
  6. Step 6: Final answer
    x = 493,155.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.